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Section 6.2
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1
What type of chemical bond forms when one or more pairs of electrons are shared?
A)metallic
B)hydrogen
C)ionic
D)covalent
2
When atoms form a covalent compound…
A)the outer energy levels are filled.
B)there is a loss of valence electrons.
C)the number of energy levels is reduced.
D)the nucleus of each atom becomes more stable.
3
Which of the following is an example of a covalent compound?
A)barium chloride
B)sodium hydroxide
C)carbon dioxide
D)calcium oxide
4
What prefix would be used to describe the number of oxygen atoms present in P2O5?
A)tetra-
B)penta-
C)hepta-
D)hexa-
5
What is the reason covalent compounds are generally poor conductors of electricity?
A)strong attraction between molecules
B)separation of the valence electrons
C)excess electrons are present
D)electrons or ions are not free to move around





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